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How we shook the world of very large numbers

How an edition of More or Less influenced the naming of enormous numbers

• 9 mins

Does toilet paper cause 15% of global deforestation?

We investigate the impact of our use of toilet paper on the world鈥檚 forests.

• 9 mins

Are wild mammals only 4% of the mammal population?

We examine a study that says humans and livestock dominate mammal life on Earth

• 9 mins

Hannah Fry on using shopping data to detect ovarian cancer

The mathematician discusses a study that suggests loyalty card data could signal cancer.

• 9 mins

Spreadsheet disasters

The long and costly history of spreadsheet mistakes

• 9 mins

Florence Nightingale and how she visualised data

Tim Harford discusses the power of the nurse statistician鈥檚 groundbreaking diagrams

• 9 mins

Do 29,000 coffee pods really go to landfill every minute?

We explore the environmental consequences of our thirst for coffee

• 9 mins

Does British jewellery contain stolen Brink鈥檚-Mat gold?

We ask what happened to the 3 tonnes of pure gold after the infamous robbery of 1983

• 9 mins

Do fungi kill three times as many people as malaria?

We investigate the claim that fungal infections are a much bigger killer than malaria.

• 9 mins

Silicon Valley Bank: A very modern bank run

How do bank runs happen?

• 9 mins

Covid vaccines and false claims about miscarriage

We debunk viral claims that incorrectly link covid-19 vaccines with a risk of miscarriage

• 9 mins

A groundbreaking new proof for Pythagoras鈥� Theorem?

Two high school students say they鈥檝e discovered a new trigonometric proof for the theorem

• 9 mins

How to better understand and explain numbers

Professor Oliver Johnson discusses the use of statistics in the pandemic and in life.

• 9 mins

How accurate is baby's due date?

This week we investigate how a baby's due date is calculated

• 9 mins

The Pentagon leaks and Fox News

Why did Tucker Carlson say far more Ukrainian troops than Russian are dying in the war?

• 9 mins

How much is the Coronation crown worth?

King Charles will be anointed with the St Edward鈥檚 Crown 鈥� but what is its true value?

• 9 mins

Why is life expectancy falling in the USA?

We ask why average life expectancy in America is falling so quickly.

• 9 mins

Do 94% of marriages in Portugal really end in divorce?

We examine a social media post that claims to outline rates of divorce across the world.

• 9 mins

Detecting bad science with data

Uncovering fraud, malpractice and incompetence in science

• 9 mins

Are young people more single than ever before?

How to define and measure being single 鈥� and are dating apps to blame?

• 9 mins

A short history of data

How the evolution of data over centuries has shaped today鈥檚 world

• 9 mins

Counting Hunger in India

Is it true that hunger has worsened in India?

• 9 mins

Is breastfeeding the key to exam success?

We look at a new UK study that links being breastfed as a baby with academic achievement.

• 9 mins

US national debt: Is $32 trillion a big number?

How concerned should we be about how much the US government borrows?

• 9 mins

Will there be just six grandchildren for every 100 South Koreans?

We look at the numbers around South Korea鈥檚 birth rate and the reasons why it鈥檚 so low.

• 9 mins

Does it take 10,000 litres of water to make a pair of jeans?

The numbers behind water use and denim production.

• 9 mins

Are more adult nappies sold in Japan than baby ones?

We examine a claim related to the perception of Japan as an ageing society.

• 9 mins

Ukraine war: A new way of calculating Russian deaths

How Russian journalists are using probate records to estimate fatalities

• 9 mins

Data, extreme weather and climate change

The role data plays in climate attribution - and why we don鈥檛 always have it

• 9 mins

Are the media exaggerating how hot it is in the Mediterranean?

A look at how accurately media report on the weather 鈥� especially recent heatwaves.

• 9 mins